Analysis
Formula 1 Red Bull Racing RB13 launch
Tech analysis: Red Bull's intriguing new nose
Red Bull unveiled its latest Formula 1 car, the RB13, on Sunday, the opening in its nose becoming the main focus of attention. Former F1 technical director Gary Anderson offers his view on the intriguing device.
Edited: Feb 26, 2017, 9:37 PM
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The duct in the nose of the new Red Bull RB13 is the most obvious area of difference between this car and the rest.
This part of the car is governed by the crash structure regulations, Article 15.4.3 dictating a single external vertical cross-section of at least 9000 square millimetres 50mm behind the tip of the nose.
Article 3.7.5 of Formula 1’s technical regulations allows a single-inlet aperture in the nose, provided it is for the purpose of "driver cooling".
But this has to have a maximum projected surface area of 1500 square millimetres and, one-sixth of the size of the cross section mentioned above.
Based on what Red Bull has released of the car, in my opinion this opening looks far bigger than that.
At some point, through its ductwork, it might converge down to comply with the 1500 square millimetres regulations, but there is no way to see that from what we have seen so far.
There can be some debate as to what you count as a duct for driver cooling. Usually, the argument is about this being its "primary purpose".
On the way to cooling the driver, it may just pass over some other hot surfaces to help control their temperature.
Looking at the Red Bull, the sidepods are compact and drop away very quickly once you get past the driver, so there might be a need for that extra cooling.
This duct is a good idea, because if you look at the other 2017 cars there is a solid surface at the end of the nose and for the airflow to get around this it has to decide on its stagnation point, in other words where it separated.
With this duct you will probably get more uniform airflow around the sides of the nose structure.
There are some other ducts where the nose meets the chassis, and while it’s impossible to know for sure there’s every chance they are to feed the cooling of ERS components that will be located low down in the sidepods and close to the centre of the car.
Let’s see what turns up on the car when we see it in the real world tomorrow.
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